all i know is tht sharingan has completley ruined the series.. as of the latest "twist". madaras sharingan ascending into rinnengan?!? r u joking? worst twist ever... just bad. the sharingan was already op and ridiculous enough. with susanoo, amatarasu, tsukiomi, Kakashi's void thing. and all tht on top of the perfect imitation thing and increased reactions and what not. sharingan is soo broken and there is no sign of its evolution ceasing. in my opinion sharingan has completley ruined the series i hate it